Lib Javascript para fazer strip tags (parecido com a versão em PHP).

https://www.npmjs.com/package/striptags

Uso

var striptags = require('striptags');
 
var html =
    '<a href="https://example.com">' +
        'lorem ipsum <strong>dolor</strong> <em>sit</em> amet' +
    '</a>';
 
striptags(html);
striptags(html, '<strong>');
striptags(html, ['a']);
striptags(html, [], '\n');